Bind an interface in java TCP connection

Question

I have two interfaces in a solaris host. I would like to initiate two TCP connections to a single TCP server via both interfaces as shown in the diagram. Are there any optio

Answer 1

Do you mean something like this:

Socket socket1 = new Socket();
socket1.bind(new InetSocketAddress("10.1.1.1", port));
socket1.connect(new InetSocketAddress("10.1.3.1", port));

Socket socket2 = new Socket();
socket2.bind(new InetSocketAddress("10.1.2.1", port));
socket2.connect(new InetSocketAddress("10.1.3.1", port);

Answer 2

You can use

Socket s = new Socket(hostname, port, localInterface, 0);

However, many OSes do not honour this "hint" and will use the routing table anyway.